Pneumatic-surfacer frame.



No. 802,457. PATENTED OCT. 24, 1905. H. G. KOTTEN.

PNEUMATIG SURFACER FRAME.

APPLICATION FILED MAYS, 1905.

2 SHEETS-SHEBT 1.

Aumlw. n Gua-nl co.4 Palomumonnmins. wasnmGYdNl c2 PATENTED OCT. 24,1905.

H. G. KOTTEN. PNEUMATIC SURFACER FRAME.

APPLICATION FILED MAYS, 190.

2 SHEETS-SHEET 2.

HERMAN (i. KOTTEN, OF NEW YORK, N. Y.

PNEUWlTlC-SURFACER FRAME..

Speccation of Letters Patent.

Patented Oct. 24, 1905.

Application filed May 3, 1905. Serial No. 258,736.

To wZ u/'mm/ 'zit 'may concer/t.'

Be it known that l, H ERMAN G. Kor'rnN, a

citizen of the United States, residing in the city, county, and State ofNew York, have invented a new and useful Pneuniatic-Surfacer Frame, ofwhich the following is a specification.

My invention consists of a novel construction of a pneumatic-surfacerframe in which a pneumatic tool of the Ketten or similar type issuitably secured to a laterally-extending arm which is movably mountedin an ad justable carrier, the present invention more particularlyrelating to the simplifying and cheapening of the prior devicesemployed, whereby l am enabled to dispense with complicated hoisting'and lowering mechanism and can reduce the expense of construction to aminimum.

It also consists of a novel construction of a carrier provided withadjustable guide-plates and in novel means for rotatably supporting,raising, and lowering the carrier.

1t also consists of a novel construction of rotatable post composed of aplurality of uprights on which the carrier is vertically adjustable, theextremities of said uprights being assembled and secured in a novelmanner.

It further consists of other novel features of construction, all as willbe hereinafter set forth.

Figure 1 represents a perspective view of y a pneumatic-surfacer frameembodying' my invention. Fig. 2 represents asectional view on line afrr, Fig. 1. Fig. 3 represents an end elevation of the carrier and itsadjuncts, showing the arm carried thereby in section. Fig. 4 representsa side elevation of the hoisting mechanism. Figs. 5 and 6 representperspective views of other embodiments of my invention. Fig. 7represents a section of the rollerbearings.

Similar numerals of reference indicate corresponding parts in thefigures.

Referringl to the drawings, 1 designates the base or bed provided with aboss or upwardlyextending hollow bearing or projection 2, between whichand the cap 3 are ball-bearings 4.

5 designates a depending sleeve on the cap 3, adapted to fit and haveits bearing within the boss 2.

6 designates a bolt the shank of which is adapted to pass th rough theplate 7 and through the cap 3 and is provided with the nuts 8, wherebythe relation of the cap and the base is properly adjusted.

9 designates rods or uprights mounted on the cap 3, held together attheir upper ends by the bracket 10, on which is mounted a drum 11,having secured thereto a gear 12, adapted to engage a pinion 13, mountedon a shaft 14, to which is fixed a ratchet 15, adapted to coact with apawl 16 to prevent improper rotation of said drum 11, said shaft 14being adapted to be actuated by means of the handle or crank 17, securedthereto.

18 designates a carrier mounted on the uprights 9, which passtherethrough, said carrier being provided with a hook, eyebolt, orequivalent device 19, to which is secured one end of a flexibleconnection 20, the other end thereof being suitably secured to the drum11, whereby the carrier is raised and lowered as desired by the rotationof said drum.

21 and 22 designate upper and lower rollers mounted on bearings 23 inthe carrier 18 and between which is adapted to move alaterally-extending arm 24, preferably com posed of an lf-beam havingupper and lower flanges 25 extending outwardly therefrom, formingchannels or grooves 26, with which the guides or guide-plates 27 areadapted to engage.

28 designates a slot in the guides 27, which are provided with screws orbolts 29, whereby said guides are adjustably secured to the carrier 18.

3() and 31 designate two clamping members suitably secured to the arm24, as by a bolt 32, and having projecting portions 33 and 34, in theforward portion of which is located a handle 35, said members 30 and 31supporting a pneumatic tool 36, which may be constructed according toany approved type; but I preferably construct the tool in accordancewith the prior Kotten patents heretofore granted to me forstone-dressing tools.

The pneumatic tool 36 is provided with a working tool 37 of any approvedor suitable type, which is adapted to be used on the block of stone orother material 38. In the embodiment shown in Fig. 5 instead of mountingthe gearing of the hoisting mechanism on the bracket 10 or itsequivalent it is mounted on the carrier 18, and instead of mounting theratchet on the shaft 14 1 mount it on the same shaft as the gearcorresponding to the gear 12, heretofore referred to.

39 designates a pulley mounted in the ears or other supports 40, securedto the bracket 10, and over which the flexible connection 20 passes tothe drum 41, mounted on the shaft 42, on which is also carried a ratchet43 and IOO a gear 11, said gear engaging with a pinion 45, mounted onthe shaft 16, which is actuated by the handle L17, said ratchet 43coacting with a pawl 48, secured to the carrier 18, whereby improperrotation of the drum 41 is prevented.

In the embodiment shown in Fig. 6 I etnploy a chain-hoist 48X, the upperpulleys 49 being' mounted in the ears or support 50 of the bracket 10,the lower pulleys being mounted in a support 51, secured to the carrier18, the chains of the hoist 48 passing on either side of the bracket 10.I have deemed it un necessary to describe in greater detail theconstruction and operation of the chain-hoist, as the same will befamiliar to those skilled in this art.

It is obvious that the flexible connection 2 may be secured to thecarrier 18 by an eye bolt, as seen in Fig'. 1, or by a hook 52, as seenin Fig. 5, or by other means, and that the gearing of the hoistingmechanism may be secured to either the bracket 10 or the carrier 18without departing' from the spirit of my invention.

AThe operation is as follows: The operator by means of the handle 35 canmove the pneumatic tool as desired over the block of stone or othermaterial which is being' dressed, the laterally-extending arm 24permitting the tool to be moved toward or away from the operator. As thecap 3, to which the uprights 9 are secured, is mounted on ball-bearingson the base 1, it is apparent that the tool may be very easily rotatedas desired, it being' under'- stood that motive iiuid is led from anydesirable source to the pneumatic tool, as at 53, in order to actuatethe same. .Vhen it is desired to raise or lower the tool, this can beeasily and readily done by actuating the handle 17 or by means of thechain-hoist 48X, as seen in Fig. 6, whereupon the carriage 18, thelaterally-extending arm 17 carried thereby, as well as the tool securedto said arm, will be correspondingly raised or lowered, the pawls 16 and418 preventing improper movement of the drums 11 and 11.

It will be clear from the foregoing that in my present invention the bedand its adjuncts vare adapted to be conveniently shifted to differentpoints in a stone-yard, since the concrete unitary device is light andportable and capable of being readily moved by a'single operator to thedesired points.

By the novel construction of supporting'- post, which in the presentinstance is composed of a plurality of rods 9, secured at their upperand lower extremities, a frame of great stiffness and rigidity isobtained, which is at the same time light and portable.

By the provision of the rotatable cap 3, provided with the ball-bearingsand the inwardlyeXtendingbearing-sleeve 5, it will be apparent that uponloosening the bolts 8 the carrier, cap, uprights, andlaterally-extending arm can be quickly adjusted to the desired extentand upon tightening the bolts 8 the arm 25 and the tool 86 can be movedtoward and away from the uprights in a rectilinear line, according torequirements.

By the provision of the guide-plates 27 and their adjuncts, which arearranged so as to cooperate with the laterally-extending arm, anybinding' of the arm in its movements is prevented, as is evident.

By constructing the laterally-extendingarm of an I-beam or Tbeam adevice of great stiffness and rigidity is obtained which is veryessential in devices of this character, since it is necessary that theouter extremity of the arm which carries the pnematic tool must not sag,but must travel always in substantially the same horizontal plane.

I have found in practice that the work done by my novel machine is moreuniform than hand-work, and the machine is particularly adapted for usein a quarry for dressing granite and other hard stone, leaving' it freefrom all waves and imperfections, and it is also used with the best ofresults where large building operations in stone are in progress, whereit effects a great saving' in time and labor by finishing the largestone used in the construction-work.

So far as I am aware I am the first in the art to produce a concreteunitary structure embodying' the combination of a plurality of uprightssecured at their lower extremities to a rotatable cap provided withbearings, as described, and having a carrier guided at two points uponthe rods or uprights, as 9, and my claims to these features aretherefore to be interpreted with corresponding scope.

It will be apparent that various changes may be made by those skilled inthe art which will come within the scope of my invention, and I do not,therefore, desire to be limited in every instance to the exactconstruction herein shown and described.

In practice Iprefer to mount the upper rollers Q1 in journal-boxes 54,adapted to move in slots 55, and having' screws 56 for the adjustment ofthe boXes, the latter preferably resting on the springs 57.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a surfacer-frame, a base, a cap rotatably mounted thereon, aplurality of uprights secured to said cap, a carrier movably mounted onsaid uprights, an arm having' a pneumatic tool secured thereto, said armbeing laterally movable in said carrier and means for raising andlowering said carrier,

2. In a surfacer-frame, a base, a bearing thereon, a cap rotatablymounted on said bearing, ball-bearings for said cap, uprights secured tosaid cap, a carrier vertically movable on said uprights, an arm having apneumatic tool secured thereto laterally movable in said IOO IIO

carrier, and means lor raisingl and lowering said carrier.

3. ln a pneumatic-surfacer frame, a base, a bearing thereon, comprising`a hollow projection, a cap carried thereby, ball-bearings intermediatesaid cap and the upper portion of said projection, a sleeve dependingfrom said cap and extended within said bearing, a plate located belowsaid sleeve and a clampingl device common to said plate and cap incombination with astone-surfacing device supported above said cap.

4. In a pneumatic-surfacer frame, a base, a bearing` thereon,comprising' a hollow projection, a cap carried thereby, ball-bearingsintermediate said cap and the upper portion of said projection andadepending sleeve within said bearing and integral with said cap, aclamping device common to said bearing and cap and uprights secured tosaid cap, a carrier vertically movable on said uprights, and an armlaterally movable carried by said carrier and to which a pneumatic toolis secured.

5. In a surfacer-frame, a base, a bearing therefor, a cap rotatablymounted thereon, ball-bearings for said cap, a plate adapted to engagesaid base, a bolt passing therethrough, and through said cap, a nut forsaid bolt, uprights secured to said ca a carrier vertically movable onsaid uprig its, an arm laterally movable carried by said carrier and towhich a pneumatic tool is secured and means :for raising and loweringsaid carrier.

6. ln a surfacer-frame, a base, a cap rotatably mounted thereon,uprights mounted on said cap, a carrier movably mounted on saiduprights, upper and lower rollers mounted in said. carrier, alaterally-extending arm adapted. to travel between said rollers, apneumatic tool secured to said arm, upper and lower 'flanges on saidarm, channels formed therebetween, guides adjustably secured to saidcarrier and engaging said channels and means for raising and loweringsaid carrier.

7. ln a device of the character described, a base, a cap rotatablymounted thereon, up-

rights secured to said cap, a carrier movable on said uprights, rollersmounted in said carrier, an arm engaging said rollers, guides secured tosaid carrier adapted to coact with said arm, a pneumatic tool secured tosaid arm, a bracket secured at the upper end ofsaid uprights, a drummounted therein, a Yflexible connection secured to said carrier and tosaid drum, and means for actuating said drum.

8. In a device of the character described, a base, uprights rotatablymounted thereon, a carrier vertically movable thereon, upper and lowerrollers mounted on said carrier, a

laterally-extending arm adapted to travel between said rollers, upperand lower flanges extending outwardly from said arm, guides for said armadjustably secured to said carrier, a bracket fastened to said uprights,a drum mounted in said bracket, a liexible connection secured to saidcarrier and to said drum, a gear iixed to said drum and means foractuating said gear.

9. ln a suriacer-frame, a carrier, means for supporting and raising andlowering said carrier, upper and lower rollers mounted in the latter, anarm adapted to travel between said rollers and having flanges thereon,slot ted guide-plates carried by said carrier and adapted to projectbetween. said flanges and a pneumatic tool secured to said arm.

10. In a surfacer-frame, a base, a bearing thereon, a cap rotatablymounted on said bearing, an upright supporting device secured to saidcap, a carrier guided on said supporting device, an arm laterallymovable in said carrier, a pneumatic tool secured to said arm and meanslor raising and lowering i said carrier.

11. In a surfacer-lirame, a base, a bearing thereon, a cap rotatablymounted on said bearing, ball-bearings for said cap, means for clampingsaid cap with respect to said base, an upright supporting device securedto said. cap, a carrier guided on said supporting device, an armlaterally movable in said carrier, guides secured to the latter andadapted to coact with said arm, a pneumatic tool secured to said arm,and means for raising and lowering said carrier.

12. In a surfacer-lrame, a base, a cap rotatably mounted thereon, anupright supporting device mounted on said cap, a carrier guided on saidsupporting device, rollers mounted in said carrier, adjusting devicesfor said rollers, an arm engaging said rollers, guides secured to saidcarrier and adapted to coact with said arm, a pneumatic tool secured tosaid arm, and means for raising and lowering said carrier.

13. ln a surfacer-frame, a carrier,` means,

for supporting and raising and lowering said carrier, upper and lowerrollers mounted in said carrier, journal-boxes for said rollers, springsunder said boxes, adjusting devices for said boxes, an arm locatedbetween said rollers, guides secured to said carrier and adapted tocoact with said arm, and a pneu matic tool secured to said arm.

C. D. MGVAY.

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